News Summary: Report details Medtronic tactics

SPIN DOCTORS? Medical device maker Medtronic Inc. helped write and edit medical journal articles attributed to outside physicians, which downplayed the risks of the company's best-selling bone graft, according to Senate investigators.

CLOSED-DOOR OPERATIONS: The world's largest device maker did not disclose its role in shaping 13 key studies of InFuse, including serious risks such as male sterility, infection and increased back and leg pain.

TREATMENT: Medtronic cooperated with the investigation and says it disagrees with many findings in the report, which was prompted by an earlier probe in The Spine Journal, a medical publication.